78666320

素因数分解:

$2^4\times 5^1\times {\mathrm{983329}}^1$

素因数の和:983342

約数の個数: 20

約数和(自身を含む): 182899380

約数和(自身を除く): 104233060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 983329, 1966658, 3933316, 4916645, 7866632, 9833290, 15733264, 19666580, 39333160, 78666320]

約数ペア:

[(1, 78666320), (2, 39333160), (4, 19666580), (5, 15733264), (8, 9833290), (10, 7866632), (16, 4916645), (20, 3933316), (40, 1966658), (80, 983329)]